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???? ??? ???? ???? ??????? ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd.. ?? ????? ??? ?????? ???? ?????? ?????? ????????? ????????? ??? ???? ????? ??????? ?????? ????? ?????? ??? ????? ?? ???? ????? ??????? ????? ???? ??????? ???? ??? ????? ?????? ??????? ?????? ??????? ??????? ??? ????? ??????? ????????? ?? ?????? ????? ?? ???????? ??? ?? ??? ????? ?????? ??????????? ?????? ??????. ????? ?????? ?????? ???? ?? ???? ?????? ??????? ??? ???? ?????? ?????? ?? ???? ??????? ???????? ? ?????. ?? ??????? ??????? ???????? ???????? ????? ???? ??? ???? ?????? ?? ??? ??????? ???????? ???? ???? ??? ????? ????????? ?????? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ?????? ?? ?????? ?????? ????? ????? ??????. ?? ??????? ??? ?????? ?????????? ??? ???? ?????? ??????? ????? ??? ?????? ????? ??? ??????? ?? ????? ???????? ?????? ???????. ???? ??? ????? ?????? ?????? ??? ??? ???? ??????? ?? ???? ????
- ???? ??? 150# ??? ???????
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- ??????? A234WPB? ??????? ?????? ANSI? ??????? BW? ??????? ?????? DIN? ?????? ??????? ?????? ????? ????? ??????? ????????? ??????? ?????? ??? ??????? ????? ??? ??????? ??????? ?????? ??????? ????? ??????
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- ???? ??????? PN63
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